/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2017 jPOS Software SRL
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.jpos.iso;

/**
 * Interafce enable to get current composite field number.
 * <p>
 * {@link ISOMsgFieldPackager} needs a number of current (parent) composite field
 * in order to enable nesting in its tags other composite fields (e.g.
 * {@link org.jpos.iso.packager.GenericSubFieldPackager} or even
 * {@link org.jpos.iso.packager.GenericTaggedFieldsPackager})
 *
 * @author Robert Demski <drdemsey@gmail.com>
 */
public interface ISOSubFieldPackager {

    /**
     * Get current composite field number
     * @return composite field number
     */
    int getFieldNumber();

}
